diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe843cb3db6..da9d9b704cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,6 +61,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Plugins/runtime state: keep the key being registered when namespace eviction runs in the same millisecond as existing entries, so `register` and `registerIfAbsent` do not report success while evicting their own fresh value. Thanks @vincentkoc.
 - Control UI/Talk: make failed Talk startup errors dismissable and clear the stale Talk error state when dismissed, so missing realtime voice provider configuration does not leave a permanent chat banner. Fixes #77071. Thanks @ijoshdavis.
 - Control UI/Talk: stop and clear failed realtime Talk sessions when dismissing runtime error banners, so the next Talk click starts a fresh session instead of only stopping the stale one. Thanks @vincentkoc.
 - Control UI/Talk: retry from a failed realtime Talk session on the next Talk click instead of requiring a separate stale-session stop click first. Thanks @vincentkoc.
diff --git a/src/plugin-state/plugin-state-store.sqlite.ts b/src/plugin-state/plugin-state-store.sqlite.ts
index 38125dceb7e..d3e97c7c19b 100644
--- a/src/plugin-state/plugin-state-store.sqlite.ts
+++ b/src/plugin-state/plugin-state-store.sqlite.ts
@@ -259,6 +259,7 @@ function createStatements(db: DatabaseSync): PluginStateStatements {
         FROM plugin_state_entries
         WHERE plugin_id = ?
           AND namespace = ?
+          AND entry_key <> ?
           AND (expires_at IS NULL OR expires_at > ?)
         ORDER BY created_at ASC, entry_key ASC
         LIMIT ?
@@ -387,6 +388,7 @@ function enforcePostRegisterLimits(params: {
   namespace: string;
   maxEntries: number;
   now: number;
+  protectedKey: string;
 }): void {
   const namespaceCount = countRow(
     params.store.statements.countLiveNamespace.get(
@@ -399,6 +401,7 @@ function enforcePostRegisterLimits(params: {
     params.store.statements.deleteOldestNamespace.run(
       params.pluginId,
       params.namespace,
+      params.protectedKey,
       params.now,
       namespaceCount - params.maxEntries,
     );
@@ -446,6 +449,7 @@ export function pluginStateRegister(params: {
         namespace: params.namespace,
         maxEntries: params.maxEntries,
         now,
+        protectedKey: params.key,
       });
     });
   } catch (error) {
@@ -488,6 +492,7 @@ export function pluginStateRegisterIfAbsent(params: {
         namespace: params.namespace,
         maxEntries: params.maxEntries,
         now,
+        protectedKey: params.key,
       });
       return true;
     });
diff --git a/src/plugin-state/plugin-state-store.test.ts b/src/plugin-state/plugin-state-store.test.ts
index 94521be7af1..e2f08e85d71 100644
--- a/src/plugin-state/plugin-state-store.test.ts
+++ b/src/plugin-state/plugin-state-store.test.ts
@@ -264,6 +264,40 @@ describe("plugin state keyed store", () => {
     });
   });
 
+  it("keeps the just-registered key when namespace eviction timestamps tie", async () => {
+    await withOpenClawTestState({ label: "plugin-state-eviction-tie-register" }, async () => {
+      vi.useFakeTimers();
+      vi.setSystemTime(1000);
+      const store = createPluginStateKeyedStore<number>("discord", {
+        namespace: "evict-tie-register",
+        maxEntries: 1,
+      });
+
+      await store.register("z", 1);
+      await store.register("a", 2);
+
+      await expect(store.entries()).resolves.toMatchObject([{ key: "a", value: 2 }]);
+      await expect(store.lookup("z")).resolves.toBeUndefined();
+    });
+  });
+
+  it("keeps a same-millisecond registerIfAbsent claim during namespace eviction", async () => {
+    await withOpenClawTestState({ label: "plugin-state-eviction-tie-claim" }, async () => {
+      vi.useFakeTimers();
+      vi.setSystemTime(1000);
+      const store = createPluginStateKeyedStore<number>("discord", {
+        namespace: "evict-tie-claim",
+        maxEntries: 1,
+      });
+
+      await expect(store.registerIfAbsent("z", 1)).resolves.toBe(true);
+      await expect(store.registerIfAbsent("a", 2)).resolves.toBe(true);
+
+      await expect(store.entries()).resolves.toMatchObject([{ key: "a", value: 2 }]);
+      await expect(store.lookup("z")).resolves.toBeUndefined();
+    });
+  });
+
   it("rejects when the per-plugin live row ceiling would be exceeded without evicting siblings", async () => {
     await withOpenClawTestState({ label: "plugin-state-plugin-limit" }, async () => {
       seedPluginStateEntriesForTests([